We have been pulling a 26' enclosed car hauler trailer for about 10,000 miles now behind our 1982 Newell Classic with a 6V92 TA. Larry has seen it. Trailer with car inside (plus bicycles, etc) is around 8,000 lbs. The coach (36') weighs in at 29,000 lbs and change. On grades of 6%, or more I end up in 2nd gear sometimes going around 25-30mph....often I can hold 3rd gear, but I really am focused on RPM's when climbing. I like to keep my RPM's at, or near 2000....helps the engine to run cooler. Pulled a 5% grade yesterday for 25 miles into Evanston, WY and was able to keep it mostly in 5th gear, which is rare. On the flats it runs fine in cruise control at 60mph. It's kind of like sailing.....you can't worry about getting anywhere fast, and, frankly, I like the slower speeds....I see more, and enjoy the drive more. We've been over some pretty high passes on our journey, and have only gotten hot once.....going through the American Alps in Northwest Washington when we got up to over 11,000 on a 7% grade....had to pull over and let her cool down for a few minutes. Since we steamed cleaned the radiator 6 weeks ago she never gets over 200....usually around 198 on the long, long climbs like yesterday. Normally, on the flats around 182-185 degrees.
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